Finding the Third Proportional to 355,019.50 and 775,090

Step by Step Solution

1. Step 1: Write the proportion equation
   355,019.50 : 775,090 = 775,090 : x
2. Step 2: Convert to fraction form
   355,019.50/775,090 = 775,090/x
3. Step 3: Cross multiply
   355,019.50x = 775,090 × 775,090
4. Step 4: Simplify right side
   355,019.50x = 600,764,508,100
5. Step 5: Solve for x
   x = 600,764,508,100/355,019.50
6. Step 6: Final answer
   x = 1,692,201.44